Announcements

  • Migration to Agda 2.6.1

    We upgraded to Agda 2.6.1 and version 1.3 of the standard library. If you want to continue working with the latest version of the book, you’ll have to update your versions locally. Please follow the instructions in Getting Started to reinstall Agda and the standard library.

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  • Versions and Releases

    We’re adding stable releases to PLFA, which you can find on GitHub!

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  • Introducing Part 3: Denotational Semantics

    We’re pleased to announce an entirely new part of the book, contributed by Jeremy G. Siek! You may have noticed his name appearing on the list of authors some months ago, or the chapters that make up Part 3 slowly making their appearance. Well, that’s all Jeremy’s work!

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  • Talking about PLFA…

    We published a paper about PLFA at the Brazilian Symposium on Formal Methods and in the Science of Computer Programming (extended version). In them, we describe our experiences writing the book, and compare it to Software Foundations.

  • PLFA as EPUB

    It has been just over a year and a half since this feature was first requested in #112… Thanks to hard work by Michael Reed, and a little elbow grease on our part, it is finally here! An EPUB version of PLFA!

  • Praise for PLFA

    Types and Semantics for Programming Languages, the course we teach in Edinburgh, was shortlisted as an Outstanding Course by the Edinburgh University Student Association (Runner Up)!

    “Types and Semantics for Programming Languages was the single best course I took throughout my time at the University of Edinburgh. Philip Wadler clearly poured his heart into teaching it, including writing a whole textbook including exercises specifically for the course.”

    “One of the most inspiring courses. Philip designed a course that is both very theoretical and very practical.”

  • PLFA as a Notebook

    NextJournal has created a notebook version of PLFA, which lets you edit and run the code samples from the book online! The notebook is based on PLFA version 19.08, with some minor changes to adapt the contents to NextJournal.

  • Migration to Agda 2.6.0.1

    We upgraded to Agda 2.6.0.1 and version 1.1 of the standard library. If you want to continue working with the book, you’ll have to update your versions locally. Please follow the instructions in Getting Started to reinstall Agda and the standard library.

    (more)

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